Lamp



FIG. 1 is a perspective view of a lamp showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is another perspective view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is another side elevational view thereof;

FIG. 6 is another side elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The ornamental design for a lamp, as shown and described.